75255377511280 has 20 divisors (see below), whose sum is σ = 174968752713912. Its totient is φ = 30102151004480.

The previous prime is 75255377511277. The next prime is 75255377511367. The reversal of 75255377511280 is 8211577355257.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470346109366 + ... + 470346109525.

Almost surely, 2^{75255377511280} is an apocalyptic number.

It is an amenable number.

75255377511280 is an abundant number, since it is smaller than the sum of its proper divisors (99713375202632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75255377511280 is a wasteful number, since it uses less digits than its factorization.

75255377511280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940692218904 (or 940692218898 counting only the distinct ones).

The product of its (nonzero) digits is 20580000, while the sum is 58.

The spelling of 75255377511280 in words is "seventy-five trillion, two hundred fifty-five billion, three hundred seventy-seven million, five hundred eleven thousand, two hundred eighty".